LA Mayor Antonio Villaraigosa and local law enforcement and city officials hold a press conference about the city's gun buy back program held yesterday.. 901 handguns, 698 rifles, 363 shotguns and 75 assault weapons were collected yesterday. Gift cards for Ralph's supermarket, ranging from $50-$200, were traded for the guns. The gift cards were donated to the city's buyback program. Two rocket launchers were also turned in..Hand guns turned in on display.